Collinsite
淡磷钙铁矿
🗣️ 情景例句
If you watch carefully you will see how to do it.
你若细心观察，就会知道怎么做这件事。
We should take due care for this accident.
我们应该对这件事给予应有的注意。
There are some hills in the picture, too.
画上有一些山。